31507970

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{269}}^1$

素因数の和:359

約数の個数: 64

約数和(自身を含む): 66134880

約数和(自身を除く): 34626910

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 53, 65, 85, 106, 130, 170, 221, 265, 269, 442, 530, 538, 689, 901, 1105, 1345, 1378, 1802, 2210, 2690, 3445, 3497, 4505, 4573, 6890, 6994, 9010, 9146, 11713, 14257, 17485, 22865, 23426, 28514, 34970, 45730, 58565, 59449, 71285, 117130, 118898, 142570, 185341, 242369, 297245, 370682, 484738, 594490, 926705, 1211845, 1853410, 2423690, 3150797, 6301594, 15753985, 31507970]

約数ペア:

[(1, 31507970), (2, 15753985), (5, 6301594), (10, 3150797), (13, 2423690), (17, 1853410), (26, 1211845), (34, 926705), (53, 594490), (65, 484738), (85, 370682), (106, 297245), (130, 242369), (170, 185341), (221, 142570), (265, 118898), (269, 117130), (442, 71285), (530, 59449), (538, 58565), (689, 45730), (901, 34970), (1105, 28514), (1345, 23426), (1378, 22865), (1802, 17485), (2210, 14257), (2690, 11713), (3445, 9146), (3497, 9010), (4505, 6994), (4573, 6890)]